maybe someone can help me figure this one out. i have an 8300 on a BES, running 4.5 and serviced by at&t. for some reason, my sms messages arent getting through to any carrier other than at&t. im receiving from verizon customers, but they are not getting my responses. this just started about three days ago, and it has me stumped. i have been using 4.5 since thanksgiving, and i dont think thats the issue. anyone have any ideas? thanks!